Re: [QEMU PATCH v3 8/9] cxl-mailbox-utils: 0x5604 - FMAPI Initiate DC Add
> > > +/* CXL r3.2 Section 7.6.7.6.5 Initiate Dynamic Capacity Add (Opcode
> > > 5604h) */
> > > +static CXLRetCode cmd_fm_initiate_dc_add(const struct cxl_cmd *cmd,
> > > + uint8_t *payload_in,
> > > + size_t len_in,
> > > + uint8_t *payload_out,
> > > + size_t *len_out,
> > > + CXLCCI *cci)
> > > +{
> > > +struct {
> > > +uint16_t host_id;
> > > +uint8_t selection_policy;
> > > +uint8_t reg_num;
> > > +uint64_t length;
> > > +uint8_t tag[0x10];
> > > +uint32_t ext_count;
> > > +CXLDCExtentRaw extents[];
> > > +} QEMU_PACKED *in = (void *)payload_in;
> > > +CXLType3Dev *ct3d = CXL_TYPE3(cci->d);
> > > +CXLUpdateDCExtentListInPl *list;
> > > +int i, rc;
> > > +
> > > +switch (in->selection_policy) {
> > > +case CXL_EXTENT_SELECTION_POLICY_PRESCRIPTIVE:
> > > +/* Adding extents exceeds device's extent tracking ability. */
> > > +if (in->ext_count + ct3d->dc.total_extent_count >
> > > +CXL_NUM_EXTENTS_SUPPORTED) {
> > > +return CXL_MBOX_RESOURCES_EXHAUSTED;
> > > +}
> > > +
> > > +list = calloc(1, (sizeof(*list) +
> > > + in->ext_count *
> > > sizeof(*list->updated_entries)));
> > > +convert_raw_extents(in->extents, list, in->ext_count);
> > > +rc = cxl_detect_malformed_extent_list(ct3d, list);
> > > +
> > > +for (i = 0; i < in->ext_count; i++) {
> > > +CXLDCExtentRaw ext = in->extents[i];
> > > + /* Check requested extents do not overlap with pending
> > > extents. */
> > > +if
> > > (cxl_extent_groups_overlaps_dpa_range(&ct3d->dc.extents_pending,
> > > + ext.start_dpa,
> > > ext.len)) {
> > > +return CXL_MBOX_INVALID_EXTENT_LIST;
> > > +}
> > > +/* Check requested extents do not overlap with existing
> > > extents. */
> > > +if (cxl_extents_overlaps_dpa_range(&ct3d->dc.extents,
> > > + ext.start_dpa, ext.len)) {
> > > +return CXL_MBOX_INVALID_EXTENT_LIST;
> > > +}
> > > +}
> > > +
> > > +if (rc) {
> > > +return rc;
> >
> > is list free not require ?
> >
> oh yeah it's definitely required :( that was dumb of me, same for the
> next patch.
Use a g_autofree marking for this probably given it is just
a local temp array I think.
>
> Thanks for catching that!
> -Anisa
> > > +}
> > > +
> > > +cxl_mbox_dc_add_to_pending(ct3d, in->ext_count, in->extents);
> > > +cxl_mbox_create_dc_event_records_for_extents(ct3d,
> > > +
> > > DC_EVENT_ADD_CAPACITY,
> > > + in->extents,
> > > + in->ext_count);
> > > +
> > > +return CXL_MBOX_SUCCESS;
> > > +default:
> > > +qemu_log_mask(LOG_UNIMP,
> > > + "CXL extent selection policy not supported.\n");
> > > +return CXL_MBOX_INVALID_INPUT;
> > > +}
> > > +
> > > +return CXL_MBOX_SUCCESS;
> >
> > CXL_MBOX_SUCCESS, this is unreachable
> >
> > > +}
> > > +
> > > static const struct cxl_cmd cxl_cmd_set[256][256] = {
> > > [INFOSTAT][BACKGROUND_OPERATION_ABORT] = {
> > > "BACKGROUND_OPERATION_ABORT",
> > > cmd_infostat_bg_op_abort, 0, 0 },
> > > @@ -3667,6 +3812,13 @@ static const struct cxl_cmd
> > > cxl_cmd_set_fm_dcd[256][256] = {
> > >CXL_MBOX_IMMEDIATE_DATA_CHANGE) },
> > > [FMAPI_DCD_MGMT][GET_DC_REGION_EXTENT_LIST] = {
> > > "GET_DC_REGION_EXTENT_LIST",
> > > cmd_fm_get_dc_region_extent_list, 12, 0 },
> > > +[FMAPI_DCD_MGMT][INITIATE_DC_ADD] = { "INIT_DC_ADD",
> > > +cmd_fm_initiate_dc_add, ~0,
> > > +(CXL_MBOX_CONFIG_CHANGE_COLD_RESET |
> > > +CXL_MBOX_CONFIG_CHANGE_CONV_RESET |
> > > +CXL_MBOX_CONFIG_CHANGE_CXL_RESET |
> > > +CXL_MBOX_IMMEDIATE_CONFIG_CHANGE |
> > > +CXL_MBOX_IMMEDIATE_DATA_CHANGE) },
> > > };
> >
> >
> > Thanks,
> > Alok
Re: [QEMU PATCH v3 8/9] cxl-mailbox-utils: 0x5604 - FMAPI Initiate DC Add
On Fri, 6 Jun 2025 11:21:08 -0700 Fan Ni wrote: > On Thu, Jun 05, 2025 at 11:42:22PM +, [email protected] wrote: > > From: Anisa Su > > > > FM DCD Management command 0x5604 implemented per CXL r3.2 Spec Section > > 7.6.7.6.5 > > > > Signed-off-by: Anisa Su > > See below... A few follow ups. > > > --- > > hw/cxl/cxl-mailbox-utils.c | 152 > > hw/mem/cxl_type3.c | 8 +- > > include/hw/cxl/cxl_device.h | 4 + > > 3 files changed, 160 insertions(+), 4 deletions(-) > > > > diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c > > index 004e502b22..7ee5be00bc 100644 > > --- a/hw/cxl/cxl-mailbox-utils.c > > +++ b/hw/cxl/cxl-mailbox-utils.c > > @@ -123,6 +123,7 @@ enum { > > #define GET_HOST_DC_REGION_CONFIG 0x1 > > #define SET_DC_REGION_CONFIG0x2 > > #define GET_DC_REGION_EXTENT_LIST 0x3 > > +#define INITIATE_DC_ADD 0x4 > > }; > > > > /* CCI Message Format CXL r3.1 Figure 7-19 */ > > @@ -3540,6 +3541,150 @@ static CXLRetCode > > cmd_fm_get_dc_region_extent_list(const struct cxl_cmd *cmd, > > return CXL_MBOX_SUCCESS; > > } > > > > +static void cxl_mbox_dc_add_to_pending(CXLType3Dev *ct3d, > > This naming can be improved here, not straightforward to me. > Maybe cxl_add_extents_to_pending_list() ? > > > + uint32_t ext_count, > > + CXLDCExtentRaw extents[]) > > +{ > > +CXLDCExtentGroup *group = NULL; > > +int i; > > + > > +for (i = 0; i < ext_count; i++) { > > +group = cxl_insert_extent_to_extent_group(group, > > + extents[i].start_dpa, > > + extents[i].len, > > + extents[i].tag, > > + extents[i].shared_seq); > > +} > > + > > +cxl_extent_group_list_insert_tail(&ct3d->dc.extents_pending, group); > > +ct3d->dc.total_extent_count += ext_count; > > +} > > Also the code is duplicate with existing code in cxl_type3.c > qmp_cxl_process_dynamic_capacity_prescriptive(). > The function was simulating the behaviour of the mailbox command, so it is > behaviour will be smilar to what we have in this patch, > find a way to reuse code, maybe extract common code as a helper function and > use > it in both qmp interface and here. > > > + > > +static void cxl_mbox_create_dc_event_records_for_extents(CXLType3Dev > > *ct3d, > cxl_create_dc_extent_records_for extents()? > > + CXLDCEventType > > type, > > + CXLDCExtentRaw > > extents[], > > + uint32_t > > ext_count) > > +{ > > +CXLEventDynamicCapacity event_rec = {}; > > +int i; > > + > > +cxl_assign_event_header(&event_rec.hdr, > > +&dynamic_capacity_uuid, > > +(1 << CXL_EVENT_TYPE_INFO), > > +sizeof(event_rec), > > +cxl_device_get_timestamp(&ct3d->cxl_dstate)); > > +event_rec.type = type; > > +event_rec.validity_flags = 1; > > +event_rec.host_id = 0; > > +event_rec.updated_region_id = 0; > > +event_rec.extents_avail = CXL_NUM_EXTENTS_SUPPORTED - > > + ct3d->dc.total_extent_count; > > + > > +for (i = 0; i < ext_count; i++) { > > +memcpy(&event_rec.dynamic_capacity_extent, > > + &extents[i], > > + sizeof(CXLDCExtentRaw)); > > +event_rec.flags = 0; > > +if (i < ext_count - 1) { > > +/* Set "More" flag */ > > +event_rec.flags |= BIT(0); > > +} > > + > > +if (cxl_event_insert(&ct3d->cxl_dstate, > > + CXL_EVENT_TYPE_DYNAMIC_CAP, > > + (CXLEventRecordRaw *)&event_rec)) { > > +cxl_event_irq_assert(ct3d); > > +} > > +} > > +} > > Some issue here. A lot of duplicate code compared to > qmp_cxl_process_dynamic_capacity_prescriptive. > I'm not going to refactor this on my tree. Given the level of feedback, Anisa can you spin a new patch to replace what I'm carrying (which is modified version of this with a bit of rebasing). I'll push out a tree once I've caught up with reviewing this a bit more. > > +/* CXL r3.2 Section 7.6.7.6.5 Initiate Dynamic Capacity Add (Opcode 5604h) > > */ > > +static CXLRetCode cmd_fm_initiate_dc_add(const struct cxl_cmd *cmd, > > + uint8_t *payload_in, > > + size_t len_in, > > + uint8_t *payload_out, > > + size_t *len_out, > > +
Re: [QEMU PATCH v3 8/9] cxl-mailbox-utils: 0x5604 - FMAPI Initiate DC Add
On Thu, Jun 05, 2025 at 11:42:22PM +, [email protected] wrote: > From: Anisa Su > > FM DCD Management command 0x5604 implemented per CXL r3.2 Spec Section > 7.6.7.6.5 > > Signed-off-by: Anisa Su See below... > --- > hw/cxl/cxl-mailbox-utils.c | 152 > hw/mem/cxl_type3.c | 8 +- > include/hw/cxl/cxl_device.h | 4 + > 3 files changed, 160 insertions(+), 4 deletions(-) > > diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c > index 004e502b22..7ee5be00bc 100644 > --- a/hw/cxl/cxl-mailbox-utils.c > +++ b/hw/cxl/cxl-mailbox-utils.c > @@ -123,6 +123,7 @@ enum { > #define GET_HOST_DC_REGION_CONFIG 0x1 > #define SET_DC_REGION_CONFIG0x2 > #define GET_DC_REGION_EXTENT_LIST 0x3 > +#define INITIATE_DC_ADD 0x4 > }; > > /* CCI Message Format CXL r3.1 Figure 7-19 */ > @@ -3540,6 +3541,150 @@ static CXLRetCode > cmd_fm_get_dc_region_extent_list(const struct cxl_cmd *cmd, > return CXL_MBOX_SUCCESS; > } > > +static void cxl_mbox_dc_add_to_pending(CXLType3Dev *ct3d, This naming can be improved here, not straightforward to me. Maybe cxl_add_extents_to_pending_list() ? > + uint32_t ext_count, > + CXLDCExtentRaw extents[]) > +{ > +CXLDCExtentGroup *group = NULL; > +int i; > + > +for (i = 0; i < ext_count; i++) { > +group = cxl_insert_extent_to_extent_group(group, > + extents[i].start_dpa, > + extents[i].len, > + extents[i].tag, > + extents[i].shared_seq); > +} > + > +cxl_extent_group_list_insert_tail(&ct3d->dc.extents_pending, group); > +ct3d->dc.total_extent_count += ext_count; > +} Also the code is duplicate with existing code in cxl_type3.c qmp_cxl_process_dynamic_capacity_prescriptive(). The function was simulating the behaviour of the mailbox command, so it is behaviour will be smilar to what we have in this patch, find a way to reuse code, maybe extract common code as a helper function and use it in both qmp interface and here. > + > +static void cxl_mbox_create_dc_event_records_for_extents(CXLType3Dev *ct3d, cxl_create_dc_extent_records_for extents()? > + CXLDCEventType type, > + CXLDCExtentRaw > extents[], > + uint32_t ext_count) > +{ > +CXLEventDynamicCapacity event_rec = {}; > +int i; > + > +cxl_assign_event_header(&event_rec.hdr, > +&dynamic_capacity_uuid, > +(1 << CXL_EVENT_TYPE_INFO), > +sizeof(event_rec), > +cxl_device_get_timestamp(&ct3d->cxl_dstate)); > +event_rec.type = type; > +event_rec.validity_flags = 1; > +event_rec.host_id = 0; > +event_rec.updated_region_id = 0; > +event_rec.extents_avail = CXL_NUM_EXTENTS_SUPPORTED - > + ct3d->dc.total_extent_count; > + > +for (i = 0; i < ext_count; i++) { > +memcpy(&event_rec.dynamic_capacity_extent, > + &extents[i], > + sizeof(CXLDCExtentRaw)); > +event_rec.flags = 0; > +if (i < ext_count - 1) { > +/* Set "More" flag */ > +event_rec.flags |= BIT(0); > +} > + > +if (cxl_event_insert(&ct3d->cxl_dstate, > + CXL_EVENT_TYPE_DYNAMIC_CAP, > + (CXLEventRecordRaw *)&event_rec)) { > +cxl_event_irq_assert(ct3d); > +} > +} > +} Some issue here. A lot of duplicate code compared to qmp_cxl_process_dynamic_capacity_prescriptive. > + > +/* > + * Helper function to convert CXLDCExtentRaw to CXLUpdateDCExtentListInPl > + * in order to reuse cxl_detect_malformed_extent_list() functin which accepts > + * CXLUpdateDCExtentListInPl as a parameter. > + */ > +static void convert_raw_extents(CXLDCExtentRaw raw_extents[], > +CXLUpdateDCExtentListInPl *extent_list, > +int count) > +{ > +int i; > + > +extent_list->num_entries_updated = count; > + > +for (i = 0; i < count; i++) { > +extent_list->updated_entries[i].start_dpa = raw_extents[i].start_dpa; > +extent_list->updated_entries[i].len = raw_extents[i].len; > +} > +} > + > +/* CXL r3.2 Section 7.6.7.6.5 Initiate Dynamic Capacity Add (Opcode 5604h) */ > +static CXLRetCode cmd_fm_initiate_dc_add(const struct cxl_cmd *cmd, > + uint8_t *payload_in, > + size_t len_in, > +
Re: [QEMU PATCH v3 8/9] cxl-mailbox-utils: 0x5604 - FMAPI Initiate DC Add
On Fri, Jun 06, 2025 at 06:12:19PM +0530, ALOK TIWARI wrote: > > > On 06-06-2025 05:12, [email protected] wrote: > > From: Anisa Su > > > > FM DCD Management command 0x5604 implemented per CXL r3.2 Spec Section > > 7.6.7.6.5 > > > > Signed-off-by: Anisa Su > > --- > > hw/cxl/cxl-mailbox-utils.c | 152 > > hw/mem/cxl_type3.c | 8 +- > > include/hw/cxl/cxl_device.h | 4 + > > 3 files changed, 160 insertions(+), 4 deletions(-) > > > > diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c > > index 004e502b22..7ee5be00bc 100644 > > --- a/hw/cxl/cxl-mailbox-utils.c > > +++ b/hw/cxl/cxl-mailbox-utils.c > > @@ -123,6 +123,7 @@ enum { > > #define GET_HOST_DC_REGION_CONFIG 0x1 > > #define SET_DC_REGION_CONFIG0x2 > > #define GET_DC_REGION_EXTENT_LIST 0x3 > > +#define INITIATE_DC_ADD 0x4 > > }; > > /* CCI Message Format CXL r3.1 Figure 7-19 */ > > @@ -3540,6 +3541,150 @@ static CXLRetCode > > cmd_fm_get_dc_region_extent_list(const struct cxl_cmd *cmd, > > return CXL_MBOX_SUCCESS; > > } > > +static void cxl_mbox_dc_add_to_pending(CXLType3Dev *ct3d, > > + uint32_t ext_count, > > + CXLDCExtentRaw extents[]) > > +{ > > +CXLDCExtentGroup *group = NULL; > > +int i; > > + > > +for (i = 0; i < ext_count; i++) { > > +group = cxl_insert_extent_to_extent_group(group, > > + extents[i].start_dpa, > > + extents[i].len, > > + extents[i].tag, > > + extents[i].shared_seq); > > +} > > + > > +cxl_extent_group_list_insert_tail(&ct3d->dc.extents_pending, group); > > +ct3d->dc.total_extent_count += ext_count; > > +} > > + > > +static void cxl_mbox_create_dc_event_records_for_extents(CXLType3Dev *ct3d, > > + CXLDCEventType > > type, > > + CXLDCExtentRaw > > extents[], > > + uint32_t > > ext_count) > > +{ > > +CXLEventDynamicCapacity event_rec = {}; > > +int i; > > + > > +cxl_assign_event_header(&event_rec.hdr, > > +&dynamic_capacity_uuid, > > +(1 << CXL_EVENT_TYPE_INFO), > > +sizeof(event_rec), > > +cxl_device_get_timestamp(&ct3d->cxl_dstate)); > > +event_rec.type = type; > > +event_rec.validity_flags = 1; > > +event_rec.host_id = 0; > > +event_rec.updated_region_id = 0; > > +event_rec.extents_avail = CXL_NUM_EXTENTS_SUPPORTED - > > + ct3d->dc.total_extent_count; > > + > > +for (i = 0; i < ext_count; i++) { > > +memcpy(&event_rec.dynamic_capacity_extent, > > + &extents[i], > > + sizeof(CXLDCExtentRaw)); > > +event_rec.flags = 0; > > +if (i < ext_count - 1) { > > +/* Set "More" flag */ > > +event_rec.flags |= BIT(0); > > +} > > + > > +if (cxl_event_insert(&ct3d->cxl_dstate, > > + CXL_EVENT_TYPE_DYNAMIC_CAP, > > + (CXLEventRecordRaw *)&event_rec)) { > > +cxl_event_irq_assert(ct3d); > > +} > > +} > > +} > > + > > +/* > > + * Helper function to convert CXLDCExtentRaw to CXLUpdateDCExtentListInPl > > + * in order to reuse cxl_detect_malformed_extent_list() functin which > > accepts > > typo functin > > > + * CXLUpdateDCExtentListInPl as a parameter. > > + */ > > +static void convert_raw_extents(CXLDCExtentRaw raw_extents[], > > +CXLUpdateDCExtentListInPl *extent_list, > > +int count) > > +{ > > +int i; > > + > > +extent_list->num_entries_updated = count; > > + > > +for (i = 0; i < count; i++) { > > +extent_list->updated_entries[i].start_dpa = > > raw_extents[i].start_dpa; > > +extent_list->updated_entries[i].len = raw_extents[i].len; > > +} > > +} > > + > > +/* CXL r3.2 Section 7.6.7.6.5 Initiate Dynamic Capacity Add (Opcode 5604h) > > */ > > +static CXLRetCode cmd_fm_initiate_dc_add(const struct cxl_cmd *cmd, > > + uint8_t *payload_in, > > + size_t len_in, > > + uint8_t *payload_out, > > + size_t *len_out, > > + CXLCCI *cci) > > +{ > > +struct { > > +uint16_t host_id; > > +uint8_t selection_policy; > > +uint8_t reg_num; > > +uint64_t length; > > +
Re: [QEMU PATCH v3 8/9] cxl-mailbox-utils: 0x5604 - FMAPI Initiate DC Add
On 06-06-2025 05:12, [email protected] wrote: From: Anisa Su FM DCD Management command 0x5604 implemented per CXL r3.2 Spec Section 7.6.7.6.5 Signed-off-by: Anisa Su --- hw/cxl/cxl-mailbox-utils.c | 152 hw/mem/cxl_type3.c | 8 +- include/hw/cxl/cxl_device.h | 4 + 3 files changed, 160 insertions(+), 4 deletions(-) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 004e502b22..7ee5be00bc 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -123,6 +123,7 @@ enum { #define GET_HOST_DC_REGION_CONFIG 0x1 #define SET_DC_REGION_CONFIG0x2 #define GET_DC_REGION_EXTENT_LIST 0x3 +#define INITIATE_DC_ADD 0x4 }; /* CCI Message Format CXL r3.1 Figure 7-19 */ @@ -3540,6 +3541,150 @@ static CXLRetCode cmd_fm_get_dc_region_extent_list(const struct cxl_cmd *cmd, return CXL_MBOX_SUCCESS; } +static void cxl_mbox_dc_add_to_pending(CXLType3Dev *ct3d, + uint32_t ext_count, + CXLDCExtentRaw extents[]) +{ +CXLDCExtentGroup *group = NULL; +int i; + +for (i = 0; i < ext_count; i++) { +group = cxl_insert_extent_to_extent_group(group, + extents[i].start_dpa, + extents[i].len, + extents[i].tag, + extents[i].shared_seq); +} + +cxl_extent_group_list_insert_tail(&ct3d->dc.extents_pending, group); +ct3d->dc.total_extent_count += ext_count; +} + +static void cxl_mbox_create_dc_event_records_for_extents(CXLType3Dev *ct3d, + CXLDCEventType type, + CXLDCExtentRaw extents[], + uint32_t ext_count) +{ +CXLEventDynamicCapacity event_rec = {}; +int i; + +cxl_assign_event_header(&event_rec.hdr, +&dynamic_capacity_uuid, +(1 << CXL_EVENT_TYPE_INFO), +sizeof(event_rec), +cxl_device_get_timestamp(&ct3d->cxl_dstate)); +event_rec.type = type; +event_rec.validity_flags = 1; +event_rec.host_id = 0; +event_rec.updated_region_id = 0; +event_rec.extents_avail = CXL_NUM_EXTENTS_SUPPORTED - + ct3d->dc.total_extent_count; + +for (i = 0; i < ext_count; i++) { +memcpy(&event_rec.dynamic_capacity_extent, + &extents[i], + sizeof(CXLDCExtentRaw)); +event_rec.flags = 0; +if (i < ext_count - 1) { +/* Set "More" flag */ +event_rec.flags |= BIT(0); +} + +if (cxl_event_insert(&ct3d->cxl_dstate, + CXL_EVENT_TYPE_DYNAMIC_CAP, + (CXLEventRecordRaw *)&event_rec)) { +cxl_event_irq_assert(ct3d); +} +} +} + +/* + * Helper function to convert CXLDCExtentRaw to CXLUpdateDCExtentListInPl + * in order to reuse cxl_detect_malformed_extent_list() functin which accepts typo functin + * CXLUpdateDCExtentListInPl as a parameter. + */ +static void convert_raw_extents(CXLDCExtentRaw raw_extents[], +CXLUpdateDCExtentListInPl *extent_list, +int count) +{ +int i; + +extent_list->num_entries_updated = count; + +for (i = 0; i < count; i++) { +extent_list->updated_entries[i].start_dpa = raw_extents[i].start_dpa; +extent_list->updated_entries[i].len = raw_extents[i].len; +} +} + +/* CXL r3.2 Section 7.6.7.6.5 Initiate Dynamic Capacity Add (Opcode 5604h) */ +static CXLRetCode cmd_fm_initiate_dc_add(const struct cxl_cmd *cmd, + uint8_t *payload_in, + size_t len_in, + uint8_t *payload_out, + size_t *len_out, + CXLCCI *cci) +{ +struct { +uint16_t host_id; +uint8_t selection_policy; +uint8_t reg_num; +uint64_t length; +uint8_t tag[0x10]; +uint32_t ext_count; +CXLDCExtentRaw extents[]; +} QEMU_PACKED *in = (void *)payload_in; +CXLType3Dev *ct3d = CXL_TYPE3(cci->d); +CXLUpdateDCExtentListInPl *list; +int i, rc; + +switch (in->selection_policy) { +case CXL_EXTENT_SELECTION_POLICY_PRESCRIPTIVE: +/* Adding extents exceeds device's extent tracking ability. */ +if (in->ext_count + ct3d->dc.total_extent_count > +CXL_NUM_EXTENTS_SUPPORTED) { +return CXL_MBOX_RESOURCES_EXHAUSTED; +} +
